RubyとJIT

Transcript

1. Ruby, YARV, ͦͯ͠JIT 2018/01/29 @na_o_ys
2. ࣌͸ḪΓ
3. Ruby 3x3 @RubyKaigi 2015 https://www.youtube.com/watch?v=E9bO1uqs4Oc
4. Evan Phoenix ʮJITͨ͠Β?ʯ @RubyKaigi 2015 • Evan Phoenix • Rubinius ͷ࡞ऀ • Rubinius Ͱ͸ LLVM Λར༻ͨ͠ JIT Λ࣮૷ࡁ Έͩͬͨ
5. ͦͯ͠ 2 ೥ޙ, 2018/1ݱࡏ
6. ͍͔ͭ͘ͷ JIT ϓϩδΣΫτ • MJIT • Vladimir Makarovࢯ • YARVΛ୤٫͠, ϨδελϕʔεVMʹ • CίʔυΛಈతੜ੒͠, ࠷దԽ, ίϯύΠϧ • YARV-MJIT • k0kubunࢯ • YARV(ελοΫϕʔεVM)ͷ··, MJITͷJITػߏΛಋೖ
7. YARVͱ͸ (͓͞Β͍) • Ruby 1.9.0 Ͱ࠾༻͞ΕͨRubyॲཧܥ • ߴ଎ԽΛୡ੒ • https://speakerdeck.com/naoys/yarvfalsezui- shi-hua-nituitediao-beta
8. MJIT
9. MJIT (1/2) • https://github.com/vnmakarov/ruby/tree/rtl_mjit_branch • YARV୤٫ • ελοΫϕʔεVMͷYARVΛࣺͯ, ϨδελϕʔεVMΛߏங • Method JIT • ϝιου୯ҐͰͷJITίϯύΠϧ • CίʔυΛಈతੜ੒͠, ࠷దԽ & ίϯύΠϧ͢Δ
10. MJIT (2/2) • ͳͥϨδελϕʔεVM͔? • ୈҰʹ, ίʔυղੳͱ࠷దԽΛߦ͏ͨΊ • ελοΫϕʔε͸͜Εʹద͞ͳ͍ • ୈೋʹ, ॲཧͷߴ଎ԽͷͨΊ • ελοΫϕʔε͸ϝϞϦͷແବͳར༻͕ଟ͍ • ελοΫϕʔε͸໋ྩߦ਺͕ଟ͘ͳΔ
11. MJITͷਐḿ • RubyKaigi 2017 (2017/10) • http://gihyo.jp/news/report/01/rubykaigi2017/0003? page=2 • TL;DR • Ruby 2 ͱൺ΂͔ͯͳΓͷߴ଎Խ (ᐆດ) Λୡ੒ • ʮ࣮૷ͱͯ͠੒ख़͢Δʹ͸͋ͱ1೥΄΅͔͔ΔͩΖ͏ʯ
12. YARV-MJIT
13. YARV-MJIT • MJITͷJITػߏͷҰ෦͚ͩΛಋೖ͢Δ • YARV͸࢖͍ଓ͚Δ • ͶΒ͍ • 1. ϨδελϕʔεͷϝϦοτΛ໌֬Խ • ελοΫϕʔεͩͱ࣮ࡍͲΕ͘Β͍஗͍ɾਏ͍ʁ • 2. MJIT΁ͷҠߦΛεϜʔζʹ͢Δ • JIT͕ೖΔλΠϛϯάͰ͍͖ͳΓYARV -> ϨδελϕʔεVMͷϦϓϨʔε ͕͓͖Δͷා͘ͳ͍ʁ
14. YARV-MJITͷਐḿ • https://github.com/ruby/ruby/pull/1782 • https://bugs.ruby-lang.org/issues/14235 • TL;DR • Ruby 2.6 Ͱग़͍ͨ͠ • -j, —jit ΦϓγϣϯͰ༗ޮɾແޮ੾Γସ͑ΒΕΔ
15. ·ͱΊ • RubyʹJIT͕ೖΔʂ • ͍·ͷͱ͜Ζͷະདྷ༧૝ਤ • ·ͣ͸͡Ίʹ, YARVΛҡ࣋ͨ͠··ͰJIT͕ೖΔ • Ruby 2.6 ʹͰ΋ʁ • ͍ͦͯۙ͠কདྷ, YARV͕Ϩδελϕʔεʹஔ͖׵͑ΒΕͨ ΑΓ଎͍JIT͕ೖΔ